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KVM: s390x: implement KVM_CAP_SET_GUEST_DEBUG2

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Define KVM_GUESTDBG_VALID_MASK and use it to implement this capabiity.
Compile tested only.

Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210401135451.1004564-6-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Maxim Levitsky 2021-04-01 16:54:47 +03:00 committed by Paolo Bonzini
parent fa18aca927
commit a43b80b782
2 changed files with 7 additions and 0 deletions
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4
arch/s390/include/asm/kvm_host.h
View File

@ -701,6 +701,10 @@ struct kvm_hw_bp_info_arch {
#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
#define KVM_GUESTDBG_VALID_MASK \
(KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |\
KVM_GUESTDBG_USE_HW_BP | KVM_GUESTDBG_EXIT_PENDING)
struct kvm_guestdbg_info_arch {
unsigned long cr0;
unsigned long cr9;

3
arch/s390/kvm/kvm-s390.c
View File

@ -550,6 +550,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
case KVM_CAP_S390_DIAG318:
r = 1;
break;
case KVM_CAP_SET_GUEST_DEBUG2:
r = KVM_GUESTDBG_VALID_MASK;
break;
case KVM_CAP_S390_HPAGE_1M:
r = 0;
if (hpage && !kvm_is_ucontrol(kvm))